*: upgrade etcd to v3.4.31 (#8017)

[ti-chi-bot]

This is an automated cherry-pick of #8017

What problem does this PR solve?

Issue Number: Close #8018, ref #5520

What is changed and how does it work?

Upgrade etcd to v3.4.31 to fix the etcd issue: https://github.com/etcd-io/etcd/issues/15247

Check List

Tests

• No code

Code changes

Side effects

Related changes

• Need to cherry-pick to the release branch

Release note

None.

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• HuSharp
• lhy1024

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[lhy1024]

Maybe we need to merge it to 7.5 cc @asddongmen @HuSharp

[HuSharp]

@asddongmen PTAL, thx!

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[HuSharp]

/merge

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[HuSharp]

/merge

[ti-chi-bot]

@HuSharp: It seems you want to merge this PR, I will help you trigger all the tests:

/run-all-tests

You only need to trigger /merge once, and if the CI test fails, you just re-trigger the test that failed and the bot will merge the PR for you after the CI passes.

If you have any questions about the PR merge process, please refer to pr process.

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[ti-chi-bot]

This pull request has been accepted and is ready to merge.

Commit hash: c4f339f